[1]史若凡,刘春阳,*,等.高轴压比高强钢筋混凝土柱斜向抗震性能研究[J].山东建筑大学学报,2020,(01):58-63.[doi:10.12077/sdjz.2020.01.009]
 SHI Ruofan,LIU Chunyang,*,et al.Study on oblique seismic behavior of high-strength reinforced concrete columns with high axial compression[J].Journal of Shandong jianzhu university,2020,(01):58-63.[doi:10.12077/sdjz.2020.01.009]
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高轴压比高强钢筋混凝土柱斜向抗震性能研究()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2020年01期
页码:
58-63
栏目:
研究论文
出版日期:
2020-02-15

文章信息/Info

Title:
Study on oblique seismic behavior of high-strength reinforced concrete columns with high axial compression
文章编号:
1673-7644(2020)01-0058-06
作者:
史若凡1刘春阳12*李飞1郭长群1于桂欣1
(1. 山东建筑大学 土木工程学院,山东 济南 250101;2.建筑结构加固改造与地下空间工程教育部重点实验室,山东 济南 250101)
Author(s):
SHI Ruofan1LIU Chunyang12*LI Fei1GUO Changqun1YU Guixin1
(1. School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Key Laboratory of Building Structural Retrofitting and Underground Space Engineering, Ministry of Education, Jinan 250101, China)
关键词:
钢筋混凝土柱斜向抗震高轴压比高强钢筋纵筋偏移钢板网约束
Keywords:
reinforced concrete column oblique seismichigh axial compression ratio high strength steelthe longitudinal reinforcement deviation steel mesh constraint
分类号:
TU378
DOI:
10.12077/sdjz.2020.01.009
文献标志码:
A
摘要:
改善高轴压比钢筋混凝土柱在斜向地震作用下的抗震性能是增强地震发生时结构安全性的有效途径。文章设计了配置高强钢筋的高轴压比钢筋混凝土柱,并对其进行低周往复荷载试验,分析了试件的破坏形态,研究了试件的滞回性能、承载力、延性、耗能性能和二阶效应等抗震性能指标。结果表明:纵向钢筋向角部偏移后,提高了试件的延性及耗能能力,但对试件的承载力提升并不显著;柱端外包钢板网约束增强了混凝土的约束作用,提高了试件承载力、延性和耗能能力,增强了试件的抗震性能;柱端外包钢板网和纵筋偏移均是加固高轴压比钢筋混凝土柱的有效方式。
Abstract:
Improving the seismic performance of reinforced concrete columns with high axial compression ratio under oblique earthquake is an effective way to enhance the structural safety during earthquake. Three reinforced concrete columns with high axial compression ratio and high strength reinforcement are designed and tested under low cyclic reciprocating load. The failure modes of the specimens are studied, and the seismic performance indexes such as hysteretic behavior, bearing capacity, ductility, energy dissipation performance and second-order effect are analyzed. The results show that the ductility and energy dissipation capacity of the test piece are improved after the longitudinal steel bar deviation to the corner, but the bearing capacity of the test piece is not significantly improved; the restraint effect of the concrete is enhanced by the steel mesh constraint wrapped around the column end. The bearing capacity, ductility and energy dissipation capacity of the test piece are improved, and the seismic performance of the test piece is improved; considering comprehensively, the steel mesh constraint wrapped around the column end and the longitudinal steel bar deviation are both effective strengthening methods.

参考文献/References:

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相似文献/References:

[1]刘春阳,王萌.钢筋混凝土双向压弯构件正截面承载力简化计算[J].山东建筑大学学报,2016,(05):452.
 Liu Chunyang,Wang Meng.Simplified calculation of bending strength of biaxial compressionbending reinforced concrete column[J].Journal of Shandong jianzhu university,2016,(01):452.

备注/Memo

备注/Memo:
收稿日期:2020-01-18 基金项目:山东省自然科学基金项目(ZR2015EQ017,ZR2018MEE044)作者简介:史若凡(1997-),女,在读硕士,主要从事工程结构抗震等方面的研究.E-mail:shiruofan1997@163.com 通讯作者*:刘春阳(1980-),男,副教授,博士,主要从事工程结构抗震等方面的研究.E-mail:liucy2011@sdjzu.edu.cn
更新日期/Last Update: 2020-01-18